Check Engine Light on? OBDAssistant connects to any standard $15 Bluetooth OBD2 scanner to tell you exactly what broke, if it's safe to drive, and how to fix it yourself for less.
Why spend hours waiting at a shop just to find out your gas cap was loose?
Click a common fault code below to see what OBDAssistant tells you in real time:
Yes, safe for short trips. Avoid heavy acceleration. Prolonged driving can overheat catalytic converters.
DIY Fix: $15 - $45 (MAF cleaner / PCV hose)
Shop Repair: $140 - $350
Dirty Mass Air Flow (MAF) sensor or small vacuum leak in the air intake tube after the filter box.
You don't need expensive equipment. Any standard Bluetooth OBD2 scanner plugs straight into your car.
Use any $15 generic ELM327 Bluetooth adapter or reserve our official Link Pro for zero-setup auto-pairing.
Locate the standard OBD2 port under your steering wheel dashboard and plug the adapter in. No tools required.
Tap "Quick Scan" in OBDAssistant. Get your plain-English diagnosis, safety check, and live telemetry in seconds.
Reserve the custom OBDAssistant™ Link Pro adapter for just $29 ($20 off retail) + 1 Year Pro Free.
You're 50 miles from home and the Check Engine Light turns on. OBDAssistant instantly tells you if it's safe to keep driving or if you need to pull over immediately.
Sellers often clear fault codes right before a test drive. Plug in OBDAssistant to inspect emissions readiness monitors and uncover hidden pending engine faults.
Stream 250+ live sensors, graph O2 switching voltages, monitor fuel trims, and verify your repairs worked without buying expensive shop scanners.